Abstract
This chapter discusses circuit theory of the charge pump circuit. Since it was invented in 1932, various types have been proposed. After several typical types of charge pumps are reviewed, they are compared in terms of the circuit area and the power efficiency. The type that Dickson proposed is found to be the best one as an on-chip generator where the parasitic capacitance is 1–10% of the pump capacitor. Design equations and equivalent circuit models are derived for the charge pump. Using the model, optimizations are discussed to minimize the circuit area under various conditions that the output current, the ramp time, and the power dissipation are given theoretically.
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Tanzawa, T. (2013). Charge Pump Circuit Theory. In: On-chip High-Voltage Generator Design. Analog Circuits and Signal Processing, vol 5. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-3849-6_2
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DOI: https://doi.org/10.1007/978-1-4614-3849-6_2
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